Honeywell International Inc. KSN770 Manual De Usuario

Page 3-84

6 Dec 2012

SYSTEM INSTALLATION MANUAL

066-01204 / 066-01213

© Honeywell International Inc. Do not copy without express permission of Honeywell.

J1-34

OBS F (SIN HI)

J1-54

OBS D (COS HI)

This is an AC SIN/COS OBS input, indexed at 300 degrees. Nominal input impedance 36.5 
kilohms

each line. This interface is compatible with indicators that are EZ at 300 degrees and 

indicators that are ORZ at 300 degrees. This interface will operate properly with either "0.85 gain" 
or "0.41 gain" resolvers with no special programming requirements.

Refer to the Maintenance pages for the indicator calibration procedure.

J1-14

OBS H (REF HI)

J1-74

OBS C (REF LO)

J1-68 EFIS CTRL 429 RX A

J1-48 EFIS CTRL 429 RX B

All serial data conforms to ARINC 429 for electrical characteristics, content and transmission 
interval.

Input Impedance:

10 kilohms



Resolution:

0.25 degree.

Accuracy:

1 degree.

Update Rate:

5 Hz.

Amplitude:

Unloaded peak amplitude of 

5.8 volts 15%.

Wave Form:

400 Hz 

20% sin wave.

Load Resistance:

10 ohms

10%, or one Bendix/King 148-00043-0000 in parallel 

with 0.56 

F (5%).

Current Source: 

Minimum of 40 mA to a resistive load terminated at OBS_C.

Draft as of 10/15/2012